ci(deps): Update dependency socket.io to v2 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
socket.io (source)	~1.3.7 -> ~2.5.1
socket.io (source)	~1.7.4 -> ~2.5.1

⚠️ MAJOR MAJOR MAJOR ⚠️

GitHub Vulnerability Alerts

CVE-2020-28481

The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.

CVE-2024-38355

Impact

A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process.

node:events:502
    throw err; // Unhandled 'error' event
    ^

Error [ERR_UNHANDLED_ERROR]: Unhandled error. (undefined)
    at new NodeError (node:internal/errors:405:5)
    at Socket.emit (node:events:500:17)
    at /myapp/node_modules/socket.io/lib/socket.js:531:14
    at process.processTicksAndRejections (node:internal/process/task_queues:77:11) {
  code: 'ERR_UNHANDLED_ERROR',
  context: undefined
}

Affected versions

Version range	Needs minor update?
4.6.2...latest	Nothing to do
3.0.0...4.6.1	Please upgrade to socket.io@4.6.2 (at least)
2.3.0...2.5.0	Please upgrade to socket.io@2.5.1

Patches

This issue is fixed by socketio/socket.io@15af22f, included in socket.io@4.6.2 (released in May 2023).

The fix was backported in the 2.x branch today: socketio/socket.io@d30630b

Workarounds

As a workaround for the affected versions of the socket.io package, you can attach a listener for the "error" event:

io.on("connection", (socket) => {
  socket.on("error", () => {
    // ...
  });
});

For more information

If you have any questions or comments about this advisory:

• Open a discussion here

Thanks a lot to Paul Taylor for the responsible disclosure.

References

• socketio/socket.io@15af22f
• socketio/socket.io@d30630b

---

Release Notes

socketio/socket.io (socket.io)

v2.5.1

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Bug Fixes

• add a noop handler for the error event (d30630b)

Links:

• Diff: socketio/socket.io@2.5.0...2.5.1
• Client release: -
• engine.io version: ~3.6.0 (no change)
• ws version: ~7.5.10

v2.5.0

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⚠️ WARNING ⚠️

The default value of the maxHttpBufferSize option has been decreased from 100 MB to 1 MB, in order to prevent attacks by denial of service.

Security advisory: GHSA-j4f2-536g-r55m

Bug Fixes

• fix race condition in dynamic namespaces (05e1278)
• ignore packet received after disconnection (22d4bdf)
• only set 'connected' to true after middleware execution (226cc16)
• prevent the socket from joining a room after disconnection (f223178)

Links:

• Diff: socketio/socket.io@2.4.1...2.5.0
• Client release: 2.5.0
• engine.io version: ~3.6.0 (diff)
• ws version: ~7.4.2

v2.4.1

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This release reverts the breaking change introduced in 2.4.0 (socketio/socket.io@f78a575).

If you are using Socket.IO v2, you should explicitly allow/disallow cross-origin requests:

• without CORS (server and client are served from the same domain):

const io = require("socket.io")(httpServer, {
  allowRequest: (req, callback) => {
    callback(null, req.headers.origin === undefined); // cross-origin requests will not be allowed
  }
});

• with CORS (server and client are served from distinct domains):

io.origins(["http://localhost:3000"]); // for local development
io.origins(["https://example.com"]);

In any case, please consider upgrading to Socket.IO v3, where this security issue is now fixed (CORS is disabled by default).

Reverts

• fix(security): do not allow all origins by default (a169050)

Links:

• Diff: socketio/socket.io@2.4.0...2.4.1
• Client release: -
• engine.io version: ~3.5.0
• ws version: ~7.4.2

v2.4.0

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Related blog post: https://socket.io/blog/socket-io-2-4-0/

Features (from Engine.IO)

• add support for all cookie options (19cc582)
• disable perMessageDeflate by default (5ad2736)

Bug Fixes

• security: do not allow all origins by default (f78a575)
• properly overwrite the query sent in the handshake (d33a619)

⚠️ BREAKING CHANGE ⚠️

Previously, CORS was enabled by default, which meant that a Socket.IO server sent the necessary CORS headers (Access-Control-Allow-xxx) to any domain. This will not be the case anymore, and you now have to explicitly enable it.

Please note that you are not impacted if:

• you are using Socket.IO v2 and the origins option to restrict the list of allowed domains
• you are using Socket.IO v3 (disabled by default)

This commit also removes the support for '*' matchers and protocol-less URL:

io.origins('https://example.com:443'); => io.origins(['https://example.com']);
io.origins('localhost:3000');          => io.origins(['http://localhost:3000']);
io.origins('http://localhost:*');      => io.origins(['http://localhost:3000']);
io.origins('*:3000');                  => io.origins(['http://localhost:3000']);

To restore the previous behavior (please use with caution):

io.origins((_, callback) => {
  callback(null, true);
});

See also:

• https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
• https://socket.io/docs/v3/handling-cors/
• https://socket.io/docs/v3/migrating-from-2-x-to-3-0/#CORS-handling

Thanks a lot to @​ni8walk3r for the security report.

Links:

• Milestone: 2.4.0
• Diff: socketio/socket.io@2.3.0...2.4.0
• Client release: 2.4.0
• engine.io version: ~3.5.0
• ws version: ~7.4.2

v2.3.0

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This release mainly contains a bump of the engine.io and ws packages, but no additional features.

Links:

• Milestone: 2.3.0
• Diff: socketio/socket.io@2.2.0...2.3.0
• Client release: 2.3.0
• engine.io version: ~3.4.0 (diff: socketio/engine.io@3.3.1...3.4.2)
• ws version: ^7.1.2 (diff: websockets/ws@6.1.2...7.3.1)

v2.2.0

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Features

• add cache-control header when serving the client source (#​2907)

Bug fixes

• throw an error when trying to access the clients of a dynamic namespace (#​3355)

Links

• Milestone: 2.2.0
• Diff: socketio/socket.io@2.1.1...2.2.0
• Client release: 2.2.0
• engine.io version: ~3.3.1 (diff: socketio/engine.io@3.2.0...3.3.1)
• ws version: ~6.1.0 (diff: websockets/ws@3.3.1...6.1.2)

v2.1.1

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Features

• add local flag to the socket object (https://github.com/socketio/socket.io/pull/3219)

socket.local.to('room101').emit(/* */);

Bug fixes

(client) fire an error event on middleware failure for non-root namespace (https://github.com/socketio/socket.io-client/pull/1202)

Links:

• Milestone: 2.1.1
• Diff: socketio/socket.io@2.1.0...2.1.1
• Client release: 2.1.1
• engine.io version: ~3.2.0
• ws version: ~3.3.1

v2.1.0

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Features

• add a 'binary' flag (#​3185)

// by default, the object is recursively scanned to check whether it contains some binary data
// in the following example, the check is skipped in order to improve performance
socket.binary(false).emit('plain-object', object);

// it also works at the namespace level
io.binary(false).emit('plain-object', object);

• add support for dynamic namespaces (#​3195)

io.of(/^\/dynamic-\d+$/).on('connect', (socket) => {
  // socket.nsp.name = '/dynamic-101'
});

// client-side
const client = require('socket.io-client')('/dynamic-101');

Bug fixes

• properly emit 'connect' when using a custom namespace (#​3197)
• include the protocol in the origins check (#​3198)

Important note ⚠️ from Engine.IO 3.2.0 release

There are two non-breaking changes that are somehow quite important:

• ws was reverted as the default wsEngine (https://github.com/socketio/engine.io/pull/550), as there was several blocking issues with uws. You can still use uws by running npm install uws --save in your project and using the wsEngine option:

var engine = require('engine.io');
var server = engine.listen(3000, {
  wsEngine: 'uws'
});

• pingTimeout now defaults to 5 seconds (instead of 60 seconds): https://github.com/socketio/engine.io/pull/551

Links:

• Milestone: 2.1.0
• Diff: socketio/socket.io@2.0.4...2.1.0
• Client release: 2.1.0
• engine.io version: ~3.2.0 (diff: socketio/engine.io@3.1.0...3.2.0)
• ws version: ~3.3.1 (diff: websockets/ws@2.3.1...3.3.1)

v2.0.4

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Bug fixes

• do not throw when receiving an unhandled error packet (#​3038)
• reset rooms object before broadcasting from namespace (#​3039)

Links:

• Milestone: 2.0.4
• Diff: 2.0.3...2.0.4
• Client release: 2.0.4
• Diff engine.io: -
• Diff ws: -

v2.0.3

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Bug fixes

• reset rooms object before broadcasting (#​2970)
• fix middleware initialization (#​2969)

Links:

• Milestone: 2.0.3
• Diff: 2.0.2...2.0.3
• Client release: 2.0.3
• Diff engine.io: -
• Diff ws: -

v2.0.2

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Bug fixes

• fix timing issues with middleware (#​2948)

Links:

• Milestone: 2.0.2
• Diff: 2.0.1...2.0.2
• Client release: 2.0.2
• Diff engine.io: -
• Diff ws: -

v2.0.1

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Bug fixes

- update path of client file (#​2934)

Links:

• Milestone: 2.0.1
• Diff: 2.0.0...2.0.1
• Client release: 2.0.1
• Diff engine.io: -
• Diff ws: -

v2.0.0

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This major release brings several performance improvements:

• uws is now the default Websocket engine. It should bring significant improvement in performance (particularly in terms of memory consumption) (https://github.com/socketio/engine.io/releases/tag/2.0.0)

• the Engine.IO and Socket.IO handshake packets were merged, reducing the number of roundtrips necessary to establish a connection. (#​2833)

• it is now possible to provide a custom parser according to the needs of your application (#​2829). Please take a look at the example for more information.

Please note that this release is not backward-compatible, due to:

• a breaking change related to utf-8 encoding in engine.io-parser (https://github.com/socketio/engine.io-parser/pull/81)
• an update to make the socket id on the client match the id on the server-side (https://github.com/socketio/socket.io-client/pull/1058)

Please also note that if you are using a self-signed certificate, rejectUnauthorized now defaults to true (https://github.com/socketio/engine.io-client/pull/558).

Finally, the API documentation is now in the repository (here), and the content of the website here. Do not hesitate if you see something wrong or missing!

The full list of changes:

• [feat] Move binary detection to the parser (#​2923)
• [feat] Allow to join several rooms at once (#​2879)
• [feat] Merge Engine.IO and Socket.IO handshake packets (#​2833)
• [feat] Allow the use of custom parsers (#​2829)
• [fix] Use path.resolve by default and require.resolve as a fallback (#​2797) (by @​a-lucas)
• [fix] Properly close the connection on error (#​2681) (by @​Nibbler999)
• [fix] Prevent null from being accepted as argument (#​2606) (by @​ianbrode)
• [perf] Use shared instance of the encoder (#​2825) (by @​Nibbler999)
• [perf] Reset properties instead of deleting them (#​2826) (by @​Nibbler999)
• [perf] micro-optimisations (#​2793) (by @​billouboq)
• [chore] Merge history of 1.7.x and 0.9.x branches (#​2930)
• [chore] Added backers and sponsors on the README (#​2933) (by @​xdamman)
• [chore] Bump dependencies (#​2926)
• [chore] Bump socket.io-adapter to version 1.0.0 (#​2867)
• [chore] Bump engine.io to version 2.0.2 (#​2864)
• [chore] Bump engine.io to version 2.0.0 (#​2832) (by @​sgress454)
• [chore] Update issue template with fiddle (#​2811)
• [chore] Update copyright year LICENSE to 2017 (#​2803) (by @​isabellatea)
• [docs] Add an example of custom parser (#​2929)
• [docs] Replace non-breaking space with proper whitespace (#​2913) (by @​epicTCK)
• [docs] Update emit cheatsheet (#​2906) (by @​FarazPatankar)
• [docs] Explicitly document that Server extends EventEmitter (#​2874) (by @​i8-pi)
• [docs] Add server.engine.generateId attribute (#​2880) (by @​efkan)
• [docs] Fix wrong space character in README (#​2900) (by @​SimenB)
• [docs] Fix documentation for 'connect' event (#​2898) (by @​swhgoon)
• [docs] Add webpack build example (#​2828)
• [docs] Update the wording to match the code example (#​2853) (by @​timruffles)
• [docs] Small addition to the Express Readme Part (#​2846) (by @​H3rby7)
• [docs] Add a 'Features' section in the README (#​2824)
• [docs] Add httpd cluster example (#​2819)
• [docs] Add haproxy cluster example (#​2818)
• [docs] Add nginx cluster example (#​2817)
• [docs] Implement whiteboard example (#​2810)
• [docs] Fix documentation for local flag (#​2816)
• [docs] Add emit cheatsheet (#​2815)
• [docs] Add pingInterval/pingTimeout/transports options in the API documentation (#​2814)
• [docs] Add an example for socket.join() method (#​2813)
• [docs] Fix a typo on clients method in the API documentation (#​2812)
• [docs] Fix wrong argument name in API.md (#​2802) (by @​andrea11)
• [docs] Add install script on Readme.md (#​2780) (by @​bananaappletw)
• [docs] API documentation (#​2784)

Besides, we are proud to announce that Socket.IO is now a part of open collective: https://opencollective.com/socketio. More on that later.

v1.7.4

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• [chore] Bump engine.io to version 1.8.4

v1.7.3

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• [chore] Bump engine.io-client to version 1.8.3

v1.7.2

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• [chore] Bump engine.io to version 1.8.2 (#​2782)
• [fix] Fixes socket.use error packet (#​2772)

v1.7.1

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(following socket.io-client update)

v1.7.0

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• [docs] Comment connected socket availability for adapters (#​2081)
• [docs] Fixed grammar issues in the README.md (#​2159)
• [feature] serve sourcemap for socket.io-client (#​2482)
• [feature] Add a local flag (#​2628)
• [chore] Bump engine.io to version 1.8.1 (#​2765)
• [chore] Update client location and serve minified file (#​2766)

v1.6.0

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• [fix] Make ETag header comply with standard. (#​2603)
• [feature] Loading client script on demand. (#​2567)
• [test] Fix leaking clientSocket (#​2721)
• [feature] Add support for all event emitter methods (#​2601)
• [chore] Update year to 2016 (#​2456)
• [feature] Add support for socket middleware (#​2306)
• [feature] add support for Server#close(callback) (#​2748)
• [fix] Don't drop query variables on handshake (#​2745)
• [example] Add disconnection/reconnection logs to the chat example (#​2675)
• [perf] Minor code optimizations (#​2219)
• [chore] Bump debug to version 2.3.3 (#​2754)
• [chore] Bump engine.io to version 1.8.0 (#​2755)
• [chore] Bump socket.io-adapter to version 0.5.0 (#​2756)

v1.5.1

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• [fix] Avoid swallowing exceptions thrown by user event handlers (#​2682)
• [test] Use client function to unify client in test script (#​2731)
• [docs] Add link to LICENSE (#​2221)
• [docs] Fix JSDoc of optional parameters (#​2465)
• [docs] Fix typo (#​2724)
• [docs] Link readme npm package badge to npm registry page (#​2612)
• [docs] Minor fixes (#​2526)
• [chore] Bump socket.io-parser to 2.3.0 (#​2730)
• [chore] Add Github issue and PR templates (#​2733)
• [chore] Bump engine.io to 1.7.2 (#​2729)
• [chore] Bump socket.io-parser to 2.3.1 (#​2734)

v1.5.0

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• [feature] stop append /# before id when no namespace (#​2509)
• [feature] Add a 'disconnecting' event to access to socket.rooms upon disconnection (#​2332)
• [fix] Fix query string management (#​2422)
• [fix] add quote to exec paths, prevent error when spaces in path (#​2508)
• [docs] Prevent mixup for new programmers (#​2599)
• [example] Fix chat display in Firefox (#​2477)
• [chore] Add gulp & babel in the build process (#​2471)
• [chore] Bump engine.io to 1.7.0 (#​2707)
• [chore] Remove unused zuul-ngrok dependency (#​2708)
• [chore] Point towards current master of socket.io-client (#​2710)
• [chore] Restrict files included in npm package (#​2709)
• [chore] Link build badge to master branch (#​2549)

v1.4.8

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v1.4.7

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v1.4.6

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v1.4.5

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v1.4.4

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v1.4.3

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v1.4.2

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v1.4.1

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v1.4.0

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